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152 lines
7.0 KiB
152 lines
7.0 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/sql/qdataview.cpp:51 -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQDataView Class</title>
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQDataView Class Reference<br><small>[<a href="sql.html">sql module</a>]</small></h1>
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<p>The TQDataView class provides read-only SQL forms.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qdataview-h.html">ntqdataview.h</a>></tt>
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<p>Inherits <a href="ntqwidget.html">TQWidget</a>.
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<p><a href="qdataview-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQDataView"><b>TQDataView</b></a> ( TQWidget * parent = 0, const char * name = 0, WFlags fl = 0 )</li>
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<li class=fn><a href="#~TQDataView"><b>~TQDataView</b></a> ()</li>
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<li class=fn>virtual void <a href="#setForm"><b>setForm</b></a> ( TQSqlForm * form )</li>
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<li class=fn>TQSqlForm * <a href="#form"><b>form</b></a> ()</li>
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<li class=fn>virtual void <a href="#setRecord"><b>setRecord</b></a> ( TQSqlRecord * record )</li>
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<li class=fn>TQSqlRecord * <a href="#record"><b>record</b></a> ()</li>
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</ul>
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<h2>Public Slots</h2>
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<ul>
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<li class=fn>virtual void <a href="#refresh"><b>refresh</b></a> ( TQSqlRecord * buf )</li>
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<li class=fn>virtual void <a href="#readFields"><b>readFields</b></a> ()</li>
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<li class=fn>virtual void <a href="#writeFields"><b>writeFields</b></a> ()</li>
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<li class=fn>virtual void <a href="#clearValues"><b>clearValues</b></a> ()</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQDataView class provides read-only SQL forms.
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<p>
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<p> This class provides a form which displays SQL field data from a
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record buffer. Because TQDataView does not support editing it uses
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less resources than a <a href="ntqdatabrowser.html">TQDataBrowser</a>. This class is well suited for
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displaying read-only data from a SQL database.
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<p> If you want a to present your data in an editable form use
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TQDataBrowser; if you want a table-based presentation of your data
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use <a href="ntqdatatable.html">TQDataTable</a>.
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<p> The form is associated with the data view with <a href="#setForm">setForm</a>() and the
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record is associated with <a href="#setRecord">setRecord</a>(). You can also pass a
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<a href="ntqsqlrecord.html">TQSqlRecord</a> to the <a href="#refresh">refresh</a>() function which will set the record to
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the given record and read the record's fields into the form.
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<p>See also <a href="database.html">Database Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQDataView"></a>TQDataView::TQDataView ( <a href="ntqwidget.html">TQWidget</a> * parent = 0, const char * name = 0, WFlags fl = 0 )
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</h3>
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Constructs a data view which is a child of <em>parent</em>, called <em>name</em>, and with widget flags <em>fl</em>.
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<h3 class=fn><a name="~TQDataView"></a>TQDataView::~TQDataView ()
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</h3>
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Destroys the object and frees any allocated resources.
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<h3 class=fn>void <a name="clearValues"></a>TQDataView::clearValues ()<tt> [virtual slot]</tt>
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</h3>
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Clears the default form's values. If there is no default form,
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nothing happens. All the values are set to their 'zero state',
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e.g. 0 for numeric fields, "" for string fields.
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<h3 class=fn><a href="ntqsqlform.html">TQSqlForm</a> * <a name="form"></a>TQDataView::form ()
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</h3>
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Returns the default form used by the data view, or 0 if there is
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none.
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<p> <p>See also <a href="#setForm">setForm</a>().
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<h3 class=fn>void <a name="readFields"></a>TQDataView::readFields ()<tt> [virtual slot]</tt>
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</h3>
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Causes the default form to read its fields from the record buffer.
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If there is no default form, or no record, nothing happens.
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<p> <p>See also <a href="#setForm">setForm</a>().
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<h3 class=fn><a href="ntqsqlrecord.html">TQSqlRecord</a> * <a name="record"></a>TQDataView::record ()
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</h3>
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Returns the default record used by the data view, or 0 if there is
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none.
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<p> <p>See also <a href="#setRecord">setRecord</a>().
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<h3 class=fn>void <a name="refresh"></a>TQDataView::refresh ( <a href="ntqsqlrecord.html">TQSqlRecord</a> * buf )<tt> [virtual slot]</tt>
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</h3>
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Causes the default form to display the contents of <em>buf</em>. If
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there is no default form, nothing happens.The <em>buf</em> also becomes
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the default record for all subsequent calls to <a href="#readFields">readFields</a>() and
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writefields(). This slot is equivalant to calling:
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<p> <pre>
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myView.setRecord( record );
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myView.readFields();
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</pre>
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<p> <p>See also <a href="#setRecord">setRecord</a>() and <a href="#readFields">readFields</a>().
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<h3 class=fn>void <a name="setForm"></a>TQDataView::setForm ( <a href="ntqsqlform.html">TQSqlForm</a> * form )<tt> [virtual]</tt>
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</h3>
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Sets the form used by the data view to <em>form</em>. If a record has
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already been assigned to the data view, the form will display that
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record's data.
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<p> <p>See also <a href="#form">form</a>().
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<h3 class=fn>void <a name="setRecord"></a>TQDataView::setRecord ( <a href="ntqsqlrecord.html">TQSqlRecord</a> * record )<tt> [virtual]</tt>
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</h3>
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Sets the record used by the data view to <em>record</em>. If a form has
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already been assigned to the data view, the form will display the
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data from <em>record</em> in that form.
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<p> <p>See also <a href="#record">record</a>().
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<h3 class=fn>void <a name="writeFields"></a>TQDataView::writeFields ()<tt> [virtual slot]</tt>
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</h3>
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Causes the default form to write its fields to the record buffer.
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If there is no default form, or no record, nothing happens.
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<p> <p>See also <a href="#setForm">setForm</a>().
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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